Among other this, the controller supports BDM - the so called "Background Debug Mode" which allows programming and source level debugging through a one-wire connenction. Not long ago, this interface required a relatively expensive (some hundret US-$) special hardware. This problem was solved by the development of a open source interface which provides even private developers a cheap access to these circuits.
I was among the first developers who were allowed to betatest this open source BDM solution and I again want to thank Freescale for the outstanding good support!
In this context, I also want to mention two internet community sites: freegeeks.net and forums.freescale.com - here you can find very competent help; furthermore there are also some Freescale developers posting in these forums!